Belief 8 of 28 · Doctrines of Humanity

The Great Controversy

All humanity is involved in a cosmic conflict between Christ and Satan, regarding the character of God, His law, and His sovereignty over the universe. The conflict originated in heaven when a created being chose self-exaltation, became Satan, and led part of the angels into rebellion. He introduced sin into our world.

Revelation 12:7-9

There was war in the sky. Michael and his angels made war on the dragon. The dragon and his angels made war. They didn't prevail. No place was found for them any more in heaven. The great dragon was thrown down, the old serpent, he who is called the devil and Satan, the deceiver of the whole world. He was thrown down to the earth, and his angels were thrown down with him.

Other Bible references for this belief

Genesis 3 · Genesis 6-8 · Job 1:6-12 · Isaiah 14:12-14 · Ezekiel 28:12-18 · Romans 1:19-32 · Romans 3:4 · Romans 5:12-21 · Romans 8:19-22 · 1 Corinthians 4:9 · Hebrews 1:14 · 1 Peter 5:8 · 2 Peter 3:6 · Revelation 12:4-9

Look these up in your Bible app of choice for the full text — World English Bible (public domain), ESV, NIV, NKJV, NASB are all good.